公开(公告)号：US07631738B2

公开(公告)日：2009-12-15

申请号：US11589962

申请日：2006-10-31

Applicant: David P. Smith ,  Eric R. Lauterbach ,  Daniel T. Mather ,  Jonathan L. Buelow

Inventor： David P. Smith ,  Eric R. Lauterbach ,  Daniel T. Mather ,  Jonathan L. Buelow

IPC: F16D15/00 ,  F16D41/06

CPC classification number: F16D41/07 ,  F16D41/084

Abstract: A sprag is disclosed. The sprag is configured to operate in a first mode allowing substantially mutual rotation of inner and outer races about an axis and a second mode allowing relative rotation between the inner and outer races. The sprag includes at least one actuator configured to selectively extend and retract and an outer surface configured to selectively lock the inner and outer races together as a function of the at least one actuator selectively extending.

Abstract translation: 披露了一种尖刺。 楔形件被构造成在第一模式下操作，允许围绕轴线的内圈和外圈的大体相互旋转和允许内圈和外圈之间相对旋转的第二模式。 楔形件包括构造成选择性地延伸和缩回的至少一个致动器和被配置为根据至少一个致动器选择性地延伸的功能选择性地将内圈和外圈锁定在一起的外表面。

公开(公告)号：US20080155976A1

公开(公告)日：2008-07-03

申请号：US11646536

申请日：2006-12-28

Applicant: David P. Smith ,  Eric R. Lauterbach ,  Daniel T. Mather

Inventor： David P. Smith ,  Eric R. Lauterbach ,  Daniel T. Mather

IPC: F16D31/02

CPC classification number: F16D41/084 ,  F03C1/02 ,  F15B15/061 ,  Y10T74/18568

Abstract: A hydraulic motor is disclosed. The hydraulic motor includes a first toothed wheel and at least one second toothed wheel configured to at least selectively engage the first toothed wheel. The hydraulic motor also includes at least one hydraulic actuator and at least one linkage operatively disposed between the at least one second toothed wheel. The at least one linkage configured to transfer a reciprocal motion of the at least one hydraulic actuator to a rotary motion of the first toothed wheel.

Abstract translation: 公开了一种液压马达。 液压马达包括第一齿轮和至少一个第二齿轮，其构造成至少选择性地接合第一齿轮。 所述液压马达还包括至少一个液压致动器和至少一个连杆，所述至少一个连杆可操作地设置在所述至少一个第二齿轮之间。 所述至少一个连杆构造成将所述至少一个液压致动器的往复运动传递到所述第一齿轮的旋转运动。

公开(公告)号：US07240604B2

公开(公告)日：2007-07-10

申请号：US11192036

申请日：2005-07-29

Applicant: David P. Smith ,  Daniel T. Mather

Inventor： David P. Smith ,  Daniel T. Mather

IPC: F15B13/04 ,  F16K31/12

CPC classification number: G05D7/014 ,  F15B11/006 ,  F15B13/0433 ,  F15B2211/20546 ,  F15B2211/30575 ,  F15B2211/3144 ,  F15B2211/413 ,  F15B2211/426 ,  F15B2211/428 ,  F15B2211/7053 ,  G05D7/005

Abstract: A metering valve for a work machine hydraulic system is disclosed. The metering valve has a valve body with an inlet and an outlet. The metering valve also has a main poppet disposed within the valve body between the inlet and the outlet. The main poppet has a nose end and a chamber end, and is movable between a flow-passing position at which fluid flows from the inlet to the outlet, and a flow-blocking position at which fluid flow between the inlet and outlet is blocked. The metering valve also has a pilot element movable to selectively communicate the chamber end of the main poppet with a drain, thereby affecting movement of the main poppet between the flow-passing and flow-blocking positions. The metering valve further has a solenoid mechanism operable to move the pilot element. The position of the pilot element is affected by a fluid pressure at the inlet.

Abstract translation: 公开了一种用于作业机液压系统的计量阀。 计量阀具有带有入口和出口的阀体。 计量阀还具有设置在阀体内的入口和出口之间的主提升阀。 主提升阀具有鼻端部和腔室端部，并且可在流体从入口到出口流动的流动通过位置和阻塞入口和出口之间的流体流动的阻流位置之间移动。 计量阀还具有可移动的导向元件，用于选择性地将主提升阀的腔室端部与排水管连通，从而影响主提升阀在流动通道和阻流位置之间的移动。 计量阀还具有可操作以移动导向元件的螺线管机构。 导向元件的位置受入口处的流体压力的影响。

公开(公告)号：US06955115B1

公开(公告)日：2005-10-18

申请号：US09464497

申请日：1999-12-15

Applicant: Michael A. A'Hearn ,  Thomas J. Hajek, Sr. ,  Larry W. Lorimor ,  Daniel T. Mather ,  Srikrishnan T. Tolappa

Inventor： Michael A. A'Hearn ,  Thomas J. Hajek, Sr. ,  Larry W. Lorimor ,  Daniel T. Mather ,  Srikrishnan T. Tolappa

IPC: F15B11/08 ,  E02F9/22 ,  F15B11/024 ,  F15B11/16

CPC classification number: F15B11/024 ,  E02F9/2203 ,  E02F9/2221 ,  E02F9/226 ,  E02F9/2285 ,  F15B11/16 ,  F15B2211/20576 ,  F15B2211/3051 ,  F15B2211/30515 ,  F15B2211/30525 ,  F15B2211/3058 ,  F15B2211/3111 ,  F15B2211/3144 ,  F15B2211/31576 ,  F15B2211/329 ,  F15B2211/6355 ,  F15B2211/7114 ,  F15B2211/75 ,  F15B2211/76 ,  F15B2211/78

Abstract: A fluid system is provided wherein two different fluid circuits are connected in parallel with a single source of pressurized fluid and the two fluid circuits can function together even when one of the loads is lighter than the other. This is accomplished by having the lightly loaded circuit having a directional control that when operated in one of its operative positions the flow from the rod end of the cylinder is directed through the directional control valve and combined with the supply flow being directed to the head end of the cylinder. With the other heavier loaded circuit also being actuated, the pressure of the fluid from the rod end of the fluid cylinder is equalized with the pressure of the heavier loaded circuit. Consequently, the speed of the heavier loaded circuit does not stall or slow down relative to the lightly loaded circuit. In the case of a machine having a bucket used for backdragging, the circuit needs a diverter system that provides protection from the cylinder rod of the fluid cylinder 26 from buckling during backdragging while maintaining the ability for pressure equalization when not performing a backdragging operation.

Abstract translation: 提供了一种流体系统，其中两个不同的流体回路与单个加压流体源并联连接，并且两个流体回路即使当其中一个负载比另一个轻一些时也可一起工作。 这是通过使轻载电路具有方向控制来实现的，当在其操作位置之一操作时，来自气缸的杆端的流动被引导通过方向控制阀并且与供给流相结合，引导到头端 的气缸。 在另一个较重的负载回路也被致动的情况下，来自流体缸的杆端的流体的压力与较重的负载回路的压力相等。 因此，较重负载电路的速度相对于轻载电路不会失速或减速。 在具有铲斗用于倒车的机器的情况下，电路需要一个分流器系统，该分流器系统在回扫过程中提供了防止液压缸26的气缸杆的弯曲作用，同时在不执行反向压缩操作的同时保持压力平衡的能力。

公开(公告)号：US07444809B2

公开(公告)日：2008-11-04

申请号：US11341630

申请日：2006-01-30

Applicant: David P. Smith ,  Daniel T. Mather

Inventor： David P. Smith ,  Daniel T. Mather

IPC: F16D31/02

CPC classification number: F15B21/14 ,  E02F9/2217 ,  E02F9/2292 ,  F15B11/006 ,  F15B2211/20523 ,  F15B2211/30575 ,  F15B2211/625 ,  F15B2211/7053 ,  F15B2211/88

Abstract: A hydraulic system for a work machine is provided. The hydraulic regeneration system has a tank, a primary source, a first actuator, an accumulator, and a first valve mechanism. The tank is configured to hold a supply of fluid. The primary source is configured to pressurize the fluid and has a suction inlet and a discharge outlet. The first actuator is configured to receive pressurized fluid from the discharge outlet of the primary source. The accumulator is in fluid communication with the tank, the suction inlet of the primary source, and the first actuator. The first valve mechanism is disposed between the suction inlet of the primary source and the accumulator, and is movable between a first position at which fluid returning from the first actuator is directed to the suction inlet of the primary source, and a second position at which fluid returning from the first actuator is directed to only the accumulator.

Abstract translation: 提供了一种用于作业机械的液压系统。 液压再生系统具有罐，主源，第一致动器，蓄能器和第一阀机构。 罐被配置成保持流体供应。 主要来源被配置为对流体加压并具有吸入口和排出口。 第一致动器构造成从主源的排出口接收加压流体。 蓄能器与罐，主源的吸入口和第一致动器流体连通。 第一阀机构设置在主源的吸入口和蓄能器之间，并且可在第一位置和第二位置之间移动，在第一位置，第一位置和第二位置之间，第一位置使从第一致动器返回的流体被引导到主源的吸入口， 从第一致动器返回的流体仅被引导到蓄能器。

公开(公告)号：US08966890B2

公开(公告)日：2015-03-03

申请号：US13194358

申请日：2011-07-29

Applicant: Daniel T. Mather ,  Troy A. Shawgo ,  Daniel H. Killion ,  Vishnu Irigireddy ,  Deepak Amaravadi ,  Dayao Chen ,  Matthew Hempel ,  Kenneth A. Dust ,  Ryan M. Ludwig ,  Alfred J. Abraham ,  Michael E. Nesbitt

Inventor： Daniel T. Mather ,  Troy A. Shawgo ,  Daniel H. Killion ,  Vishnu Irigireddy ,  Deepak Amaravadi ,  Dayao Chen ,  Matthew Hempel ,  Kenneth A. Dust ,  Ryan M. Ludwig ,  Alfred J. Abraham ,  Michael E. Nesbitt

IPC: F16D31/02 ,  F15B7/00

CPC classification number: F15B7/001

Abstract: A hydraulic system having an actuator having a piston and associated rod forming head and rod chambers and being adapted to move between retracted and extended positions within a cylinder, and first and second sources of fluid. A first pump provides fluid from the first source to the head chamber at a first pressure. At least one valve provides fluid from the second source at a second pressure to supplement fluid provided to the head chamber from the first pump when the second pressure is greater than the first pressure.

Abstract translation: 一种具有致动器的液压系统，其具有活塞和相关联的杆形成头部和杆室，并且适于在气缸内的缩回和伸出位置以及第一和第二流体源之间移动。 第一泵在第一压力下将流体从第一源提供给头室。 当第二压力大于第一压力时，至少一个阀在第二压力下从第二源提供流体以补充从第一泵提供给头室的流体。

公开(公告)号：US06782697B2

公开(公告)日：2004-08-31

申请号：US10227379

申请日：2002-08-26

Applicant: Daniel T. Mather

Inventor： Daniel T. Mather

IPC: F16D3102

CPC classification number: F15B11/165 ,  F15B13/0417 ,  F15B2211/20553 ,  F15B2211/253 ,  F15B2211/30555 ,  F15B2211/3111 ,  F15B2211/3144 ,  F15B2211/31576 ,  F15B2211/351 ,  F15B2211/353 ,  F15B2211/6055 ,  F15B2211/71

Abstract: In a fluid system, a source of pressurized fluid operably communicates with first and second actuators. First and second control valves control fluidly communicates with the first and second actuators. A first pressure compensating valve fluidly communicates with the first control valve and first actuator. A first signal conduit fluidly communicates with fluid flow being directed by the first control valve to the first pressure compensating valve and first actuator. A second pressure compensating valve fluidly communicates with the second control valve and second actuator. A second signal conduit fluid communicates with fluid flow being directed by the second control valve to the second pressure compensating valve and second actuator. A control signal pressure generated from a greater of a first signal pressure carried by the first signal conduit and a second signal pressure carried by the second signal conduit fluidly communicates with the first and second pressure compensating valves.

Abstract translation: 在流体系统中，加压流体源可操作地与第一和第二致动器连通。 第一和第二控制阀控制与第一和第二致动器流体连通。 第一压力补偿阀与第一控制阀和第一致动器流体连通。 第一信号导管与​​由第一控制阀引导到第一压力补偿阀和第一致动器的流体流动地连通。 第二压力补偿阀与第二控制阀和第二致动器流体连通。 第二信号导管流体与由第二控制阀引导的流体流与第二压力补偿阀和第二致动器连通。 从第一信号导管承载的较大的第一信号压力和第二信号导管承载的第二信号压力产生的控制信号压力与第一和第二压力补偿阀流体连通。

公开(公告)号：US07658065B2

公开(公告)日：2010-02-09

申请号：US11341629

申请日：2006-01-30

Applicant: David P. Smith ,  Igor Strashny ,  Daniel T. Mather

Inventor： David P. Smith ,  Igor Strashny ,  Daniel T. Mather

IPC: F16D31/02

CPC classification number: F15B21/14 ,  E02F9/2217 ,  E02F9/2292 ,  F15B2211/88

Abstract: A hydraulic energy recovery device for a hydraulic system is disclosed. The hydraulic energy recovery device has a first impeller configured to receive a flow of pressurized liquid, and a second impeller configured to pressurize a flow of liquid. The hydraulic energy recovery device also has a common shaft connecting the first and second impellers.

Abstract translation: 公开了一种用于液压系统的液压能量回收装置。 液压能量回收装置具有构造成接收加压液体流的第一叶轮和被配置为对液体流加压的第二叶轮。 液压能量回收装置还具有连接第一和第二叶轮的共同轴。

公开(公告)号：US20080098882A1

公开(公告)日：2008-05-01

申请号：US11589778

申请日：2006-10-31

Applicant: David P. Smith ,  Eric R. Lauterbach ,  Daniel T. Mather ,  Jonathan L. Buelow

Inventor： David P. Smith ,  Eric R. Lauterbach ,  Daniel T. Mather ,  Jonathan L. Buelow

IPC: F01B7/04

CPC classification number: F03C1/00 ,  F15B15/061 ,  F15B15/125 ,  F16D41/07

Abstract: A fluid motor including an inner race and an outer race is disclosed. The inner and outer races are configured to rotate about a substantially common axis. The motor also includes at least one fluid actuator configured to produce substantially linear motion as a function of selectively receiving pressurized fluid. The fluid motor also includes at least one sprag configured to rotate the inner and outer races about the axis as a function of the substantially linear motion.

Abstract translation: 公开了一种包括内圈和外圈的流体马达。 内座圈和外座圈构造成围绕基本共同的轴线旋转。 电动机还包括至少一个流体致动器，其被配置为产生作为选择性地接收加压流体的函数的基本线性运动。 流体马达还包括至少一个楔形件，其构造成作为基本线性运动的函数围绕轴线旋转内圈和外圈。

公开(公告)号：US07258058B2

公开(公告)日：2007-08-21

申请号：US11214957

申请日：2005-08-31

Applicant: David P. Smith ,  Daniel T. Mather ,  Wayne W. Lark

Inventor： David P. Smith ,  Daniel T. Mather ,  Wayne W. Lark

IPC: F15B13/04

CPC classification number: F15B13/024 ,  F15B13/0433 ,  F15B2211/30505 ,  F15B2211/30575 ,  F15B2211/329 ,  F15B2211/353 ,  F15B2211/355 ,  F15B2211/365 ,  F15B2211/55 ,  F15B2211/555 ,  F15B2211/8609 ,  G05D16/2093

Abstract: A metering valve for a work machine hydraulic system is disclosed. The metering valve has an inlet and an outlet, a main poppet, and a solenoid-operated pilot element. The main poppet is movable to pass fluid from the inlet to the outlet, and to block fluid from the inlet to the outlet. The solenoid-operated pilot element is movable between a first position at which pressurized fluid from the inlet pressurizes a control chamber in communication with a control end of the main poppet to urge the main poppet toward the flow-blocking position, and a second position at which the control chamber is communicated with a drain to move the main poppet toward the flow-passing position. The metering valve also has a relief valve element configured to drain pressurized fluid from the control chamber to move the main poppet toward the flow-passing position in response to a pressure at the inlet exceeding a predetermined pressure.

Abstract translation: 公开了一种用于作业机液压系统的计量阀。 计量阀具有入口和出口，主提升阀和电磁操作的引导元件。 主提升阀可移动以将流体从入口传送到出口，并阻止流体从入口到出口。 电磁操作的先导元件可以在第一位置和第二位置之间移动，在第一位置处，来自入口的加压流体对与主提升阀的控制端连通的控制室进行加压，以将主提升阀推向阻流位置， 所述控制室与排水管连通以将所述主提升阀朝向流动位置移动。 计量阀还具有安全阀元件，该安全阀元件被构造成响应于入口处的压力超过预定压力而从加压流体排出控制室以将主提升阀移向流通位置。